Roller bridge



FIG. 1 is a top, front perspective view of the roller bridge showing the new design;

FIG. 2 is a top, rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side elevation view thereof;

FIG. 8 is a right side elevation view thereof;

FIG. 9 is a bottom, front perspective view thereof; and,

FIG. 10 is a bottom, rear perspective view thereof.

The broken line shown in the drawings are for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a roller bridge, substantially as shown and described. 